Posterior tibial tendon dysfunction is one of the most common problems of the foot and heel. It occurs when the posterior tibial tendon, which connects the lower leg to the foot, becomes inflamed or torn. As a result, the tendon is unable to stabilize and support the foot, leading to the formation of a flat foot.
What are the symptoms?

Posterior tibial tendon dysfunction
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Pain along the face of the foot and ankle, in the tendon passage path.
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Pain that increases during exercise. High-intensity activities like running could be very difficult to perform. In Some cases, patients may experience a difficulty standing or prolonged walking.
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Pain in the outer part of the heel after the formation of a flat foot, due to displacement of the heel bone.
The causes:
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Injury - In the lower leg and the foot area, such as a fall injury, can lead to rupture and inflammation of the posterior tibial tendon.
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Overtraining, is more common in cases of people playing sports such as soccer, basketball, and tennis. Where usually the injury is on a going phase.
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Risk factors - age over 40, hypertension, diabetes and obesity.
Treatment:
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Nonsurgical options are insoles and orthopaedic equipment.
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Surgery - Surgical removal of inflammatory tissue, or reattaching the small tear if possible.
In which cases I should go and visit a doctor?
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In any situation of pain in the side of the foot and heel or a change in the foot structure or in the shape of the gait, especially after an injury and in people at increased risk, we are recommending consulting our clinic.